Running wheel of passenger aerial cableways



RUNNING WHEEL OF PASSENGER AERIAL CABLEWAYS Filed Feb. 21, 1930 Fig. l!

f fl g g d/ d MQW Patented Nov. 4, 1930 UNi'riaznfV STATES PATENTOFFICE- Mex` MLLER, or LEIPZIG, GERMANY, 'AssIGNoR 'ro FIRM ADoLrBLEIGHERT a co.,

A. G., or LEIPZIG, GERMANY RUNNING WHEEL 0F PASSENGER AERIAL 'CABLEWAYSApplication filed' February 21, 1930, Serial No. 430,211, and in GermanyApril 4, 1929.

cause both the travelling track and the run.

ning surfaces of the wheels'are comparatively narrow. Any side-slippingof the wheels from the cable can be ell'ectually avoided by suitablygrooving the rubber linings, but there is always the risk thatthe rubberlining itself will shift on the wheel body, because rubber will notadhere satisfactorilyto metal.. T he powers of adherence have certainlybeen improved by the insertion of a layer of vulcanite between the softrubber ring and the metal running wheel, this materlal having rtheproperty of furnishing a good binding medium vbetween metal on the onehand, and soft rubber on the other hand.

On the annexed drawing, to which reference is made for a completeunderstanding of my invent-ion, Fig. 1 is a cross-sectional View of aportion of a wheel showing the rubber lining as now employed; Flgs.. 2-6are similar views as Fig. 1 showing various inodifications of theinsertion of a rubber ring in accordance with this invention. U

As shown in Fig. l', the vulcanite is lield in the cast steel rim a bymeans of swallow-tail grooves, and thesoft rubber a 1s then fitted onthis vulcanite. With this system, the rubber will frequent-ly becomedetached from the metal facing, because the soft rubber will beelastically compressed while running over the cable, and Will later., oncontinuation of the movement, resume its original shape. During everycompression, the'rubber will be concentrated in the lower partof thecross section of the ring, while the outer parts of the cross-sectionwill simultaneously have a tendency to detach'theinselves frompthe wallsof the wheel rim. This The comparatively high costcon-f again when therubber lining has Worn out.

The present invention constitutes a materia-l improvement 111 that therings will not 'be made initially-of the same cross-section as that ofthe space forinedby a metal felloe and sidcplates in any given form,'inwhich space the said rings are fitted. The resulting cross-section maybe of rectangular or trapezoid form, or it may be given any desireddegree of convexity, according `to the actual requirements. As a resultof this difference in the cross-section of the rubber rings, both beforeand after assembly (see Figs. 243),-

it will be possible to fit the soft i'ubber with what may be termedpreliminary tension. If the rubber ring is then loaded by wheelpressure, the outer parts will no longer be 4able to detach themselvesfrom the raised sides (g) of the wheel-riin, and the foiina'- y tion ofa gap between the said raised sides and the rubber will be effe'ctuallyprevented.

ln the embodiment of the invention shown in Fig. 2 the vuleanite eisfixed on the felloe cl and then the soft rubber ring f with trapezoidcross-section (Fig. 3) on the vulcanite. This rubber ring will bepressed bythe raised.

a trapezoid cross-section by the suitably vantages are identical withthose already de# scribed.

1. In a carriage roller for wire-cableways, the combination with theouter rim, of la r-ubber ring made of different'shape and dimensions asthe space between-the sides of said rim adapted to-receive said ,rubberring.

2. ln a carriage roller for wire cabIeWayS,

formed raised sides if.. The resulting adthe combination with the outerrim having l l a space'of rectangular cross-section between its sides,ofa rubber ring of trapezoidal crosssection adapted to be received in saids ace.

3. In a carriage roller for wire cabiJ the combination with the outerrim having 'a space of trapezoidal cross-section between its sides, arubberring adapted to be received in said space andA being ofrectangular crosssection.

4. In a carriage roller for wire cableways, the combination with theouter rim, of an elastic annular member adapted to be received in thespace between the sides of said rim and being of different cross-sectionfrom said s ace.

5. n a carriage roller for wire cableways, the combination with theouter rim, of an elastic annular member adapted to be received in thespace between the sides of said rim and being of larger dimensions thansaid space.

6. In a carriage roller for wire cableways, sidewalls provided along therim of said roller forming an annular space, and an annular elasticmember adapted to be received in said space and of differentcross-section therefrom so as to be compressed by said side-walls. I,

In testimony whereof I affix myl signature.

MAX MLLER.

eways,

